Self-heating sadiron



July 19, '16927.l

c. E. ADAMsoN SELF HEATING SADIRON Filed Feb. 5. 1925 s Sheets-sheet 1CZ EZ daafbaowf l rgmwf July 19, 1927. 1,636,162'

. c. E. ADAMSON SELF HEATING SADIRON 'Filed Feb! 5. 1925 5 sheets-sheet2 July 19,1927. 1,636,162

. C. E. ADAMSON SELF HEATING sADIRoN giled Feb. 5.11925 s sheets-sheet s74 IZ Il l l'll\| Il ll I J, J0 l JJ .9 FIG.8. .J7 @www 10 ./2229/ J0.

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Patented July 191927. n

PATENT oFFics. f j

CHARLES E. ADAMSON, F MUNCIE, INDIANA, ASSIGNOR OF ONE-HALF TO JAMES S.RENNER, OF HUNTINGTON, INDIANA.

SELF-HEATING SADIRON.

Application iledlebruary 5, 1925. Serial No.,7,003.

A further object of the invention is to provide means for preventing thereturn of the above mentioned gas to the supply tank.

A further object of the invention is to provide in a sad-iron twin gasproducing means; a burnervfor each gas producing means; and a controlfor each burner.

A further object of the invention is to provide in a twopart cast bodyportion of 5aA sad-iron, burner elements which are partly cored in oneof said cast parts.

Still another object of the invention Vis to` provide a sad-iron of theabove mentioned type which is formed from a plurallty of separable partscapable of being replaced when damaged or otherwise rendered improper:for service.

Other objects and advantages of the invention will be apparentduringfthe course of,v

bottom casting is formed with an upstandmg the following` description. yI

In the accompanying drawings forming a part of this specification `andin which like numerals are employed to designate like parts throughoutthe same,

Figure 1 lis a side elevational view of lthe completely assembled.sad-iron embodying this invention,

Figure 2 is a top plan View ofthe sadiron illustrated in Fig. 1, i f

Figure 3 is a rear end elevational view the sad-iron illustrated inFigs. 1 and 2,

Figure 4- lis a vertical sectional view taken upon line 1VIV of Fig. 1,

Figure 5 is a vertical Sectio upon lines V V of Fig. 1,

Figure 6 is a fragmentary top plan view, partly broken away, of the twingas. producing .means and the controls therefor,

nal view taken Figure 7 is a fragmentary verticalsec-A tional view` ofa. portion of one of the gas ,producing means with the control for thesaine,

.Figure 8 is a top plan View of the bottom casting which forms a part ofthe body portion of the sad-iron,

`connecting the rear endof Figure 9 is a top plan view of the bodycasting of the body portion ofthe sadiron,

Figure 10 is a bottom planview of the body casting lillustrated in Fig.9,

Figure `11 is a fragmentary rear end ele-y vational view of the bodycasting illustrated Vin Figs. 9 and 10, and

Figure 12'is a fragmentary vertical secional view taken upon linesXII-XII of In the drawings, wherein for the purpose of illustration isshown a preferred embodiment of this invention, the numeral 5 designatesin its entirety the bottom casting of the sad-iron which has mountedthereon the body casting G. `This body casting 6 carries the burners,their gas producing means, the controls for t-he burners, and the supplyof denatured alcohol; all of these parts willbe described in det-ail asthe description proceeds. This body casting 6 has removably securedthereto the handle portion which is designated in its entirety bythenumeral 7 By referring to Fig. 8,. it will be seen that this bottomcasting 5 is provided with a plurality of fins 8 which are formedintegrally therewith and cooperate with the longitudinally extending rib9 forforming the flame pockets 10. The marginal edge of this flange 11that is cutaway or notched at 12 for forming air inlets for the flamepockets 10. The rear end of this casting 5 is' provided with anupstanding ear 13 which is apertured at 14 and is internallyscrew-threaded for receiving the screw 15 that is employed for the bodycastingV to the bottom casting. The longitudinally? extending rib `9 isprovided with an upstanding boss 16 adjacent the front end of the bottomcasting 5 and this boss 16 has an internally threaded bore 17 forreceiving the screw 18 which 4is employed for separately connecting thefront ends ofthe body and bottom castings 5 and 6 respectively.

By referring to Figs. 9 to 12 inclusive, it will be seen that the bodycasting of 'the iron is of shell yformation and includes the side walls19, the rear end wall 20 and the pointed front end 21. This front end 21is formed with an overhanging wall 22 which Vis positioned substantiallybetween the top hanging wall 22 and the top edge ofthe cast'- ing isprovided with a vertically extending bore 24 formed in a boss 25. Thisbore 24 is reduced in diameter at its lower end 24u for 'forming ashoulder tor the reception of the connecting bolt 1S, best illustratedin Fig. 5. In Fig. 10, the casing 6 is illustrated as having the coredenlargements26 termed with the side walls oi" the pointed iront end 2land located inwardly of lthe castings 6. These enlargements 26 are coredout and provided with burner openings 27 which provide :tor uniformlyheating the liront end of the iron with respect to the remaining portionof the same. The tubular burner elements 28 are illustrated as havingtheir front ends received within the cored portions 26 of the coredenlargements 26 and are arranged with their burner openings 29 presentedto the flame pockets li) in the bottom casting 5. In Figs. 10, ll and l2the rear end wall 2O of this casting 6 is illustrated as being formedwith the tubular bosses 30 which receive the rear ends of the burnertubes 28 which are closed by the caps 3l held in place by the screws AinF ig. 9, the top edge ot the side walls l) are illustrated as beingprovided witl tie notches 33 for permitting the entrance ot air into theinterior of the body casting 6. By referring to Figs. 5 and 9, it willbe seerrthat the cored enlargements are provided with verticallyextending passageways 34 which are open at their upper ends andcommunicate with the said cored enlargements 26 at their lower ends. Theside walls 19 oi this body casting 6 are provided with air inlets 36which communicate with the passages 34, as best illus* trated in F ig.5.v

Referring to Figs. A1 to 3 inclusive, it will be seen that a tank 37 is'provid-ed which has a removable liller cap 38 carried by the neck 39 ofthe tank by means of which denatured or industrial alcohol may be placedwithin the tank. Depending :trom vhe lower wall of this tank is a feedtube 40 which coinmunicates with the lower portieri ot a substantiallyU-shaped 'converter trap coupling 41. Connected to the inner side' tacesot' the upperends of this U-shaped converter trap coupling 4l are theconverter tubes 42 which extend longitnjdinally`T 'oit the body casting6 and are arranged in parallelism with each other. The front Vends oithese converter' tubes 42 are threadedly connected with the valve blocks43 which are provided with a connecting plate 44 which is secured tosaid blocks by the elements Thisconnecting plate 44 is apertured at 46tor receiving the cap screw 47 illustrated in Figs. l and 5 as beingemployed tor aiding in connecting the handle portion 7 ot the iron tothe body casting 6, the said cap screw 47 being threadedly connected atits lower end to the bore 24 of the boss 255 lformed integrally with thebody casting 6.

4heat detlecting plate 58.

The construction of the valve blocks 43 is best illustrated in Figs. 5to 7 inclusive. It will be seen that each block is provided with atubular recess 47 within which the end of one converter tube 42 isreceived. Extending in axial alinement with this tubular recess 47 is areduced passageway 4S having a valve seat 49 at its outer end which isadapted to be engaged by the tapered end of the valve stem 5() which isthreadedly connected to the blocli 43. Extending at right angles to thisreduced vpassageway 48 is a second passageway 51 which extendsdownwardly and is arranged in axial aline nient with the tubularpassageway 34 formed in the body casting 6 ot' tie iron and bestillustrated in Fig. 5.

ln F1 1. 6 and 7. the converter tubes 42 are illusti at ed asbeingprovided with lillers which consist oi' the-spiral `wire elements52 which are alternately arranged with the twisted strands 53. It willbe seen that these lillers extend from the converter trap couplin'g 41to the valve block 43 in each converter tube 42;

The handle portion 7 includes a wooden hand grip 54 which has itsopposite ends connected to the upstanding arms 55 of a heatdeiiectingplate 56 by means'ol the bolt 57 which extends axially throughthe wooden hand grip 54. This heat defiecting plate 56 is connected atits rear end to a lower heat deflectiiig plate 58 by the bolt 59 audspacci' 60. The front ends o'l these heat detlectiugr plates 56 and58are connected by the cap screw 47 and spacer element 6l, the screw 47having` been previously referred to as lacing threadedly received withinthe bore 24 ol" the boss 25 carried by the body casting 6. It Will beseen that this bottom heat detlecting plate 58 has its front endmaintained-in spaced relation to the connecting plate 44 for the valveblocks 43 by the locll: nut 62. The screw 47 forms a connection betweenthe body casting 6 and the handle portion 7 of the sad-iron which willpermit the lateral swinging of the handle portion. as illustrated inFig, 2 by the arrow line. For the purpose of locking the rear end of thehandle structure 7 to the remaining por tions of 'the sad-iron, aflexible latch meniber 63 is provided which is toi-med with thediverging legs 64 having their lower ends turned at right angle'shiorbeing connected to the tubular bosses 36 by the screws 52 which 'fastenthe 'ends ol the burner tubes 28 Vand vtheir caps 3l to "the saidtubular bosses 30. In Fig. 4 this latch member (323 is illustrated'ashaving the notches 65 formed therein and arranged for alining with acutout portion 66 formed in the rear end of thc k Y A The upper freeen'd 63 of this latch member is conveniently arranged in respect to thehand grip 54 for permitting the user to flex the latch member toward thefuel tank 37 for disengaging the notches 65 of the latch member 63 forpermitting the entire handle structure 7 to be swung laterally forexposing the interior of the body portion of the sad-iron.

The operation of this sadiron for converting industrial or denaturedalcohol into gas suitable to be burnt for heating the iron is as followsIt will be seen that the tank 37 may be lled to a desired level withindustrial or denatured alcohol b removing the cap 38. After this tank37 ias been provided with alcohol, the latter will feed by gravity ithrough the tube 40 into t-heconverter trap coupling 4l. Thiscouplingwill lill up with liquid alcohol until it reaches the level ofthe converter tubes 42 whereupon it will flow through these tubes, itbeing noted by inspecting Fig. l that the converter tubes 42 areinclined downwardly? toward the front and of the sad-iron. The alcoholin passing through these converter' tubes is caused to travel a tortuouspath by the filler elements` 52 and 53 located in these converter tubes.

These filler elements are intended to produce a whirling or spiralmotion by the spiral wires 52 and twisted strands 53. The flow of thealcohol into the burner tubes 28 and cored enlargements 26 is controlledby i'` stems 50 should be operated for permitting :a t be heated.

a small quantity of the alcohol in its liquid state to be fed into theflame pockets formed in the bottom casting 5. The valves should then beshut oil' for preventing further feeding of the liquid fuel into thebottom casting' and the liquid fuel that has been discharged should thenbe lighted. 'The burning'of this liquid fuel causes the converter tubes42 andl the burner'tubes 29 The heating of the converter tubes 42 andthe liquid fuel therein, will cause this fuel to vaporize or in otherwords the liquid fuel will first start to boil and will then be changedinto .highly expanded" gas or vapor. As this gas is produ-ced, the valvestems may be operated for withdrawing their tapered'ends from the valveseats 49 for permitting this gas to pass through the passageways 48, inthe valve blocks 43, and into the passageways 51. This gas passesdownwardly through these passageways 511. and enters the tubularpassageways 34 formed in the body casting 6. The travel of the gasesthrough these passageways 34 causes the drawing in of air through theair inlets 36. This mixed gas and air will produce a llame that isintensely hot and free from smoke or odor.

It will be understood that the filler elements 52 and 53 in theconverter tubes 42 will retard the travel of the liquid fuel from thetank 37V to the burners and this ref tarding of the travel of thefuelwill permit the same to be converted into gas by the time it arrivesat the valve blocks 43. The filler elements 52 and 53 and the convertertrap coupling 4l will prevent the return of any of the gas into the tank37, for the reason that the gas is lighter than the liquid and will nottravel upwardly through the liquid in the arms of the coupling 41 and inthis way will maintain an even pressure at the valve outletsrso long asthe flame is. kept burning inside the iron body.

It is now believed that the constructionV andy operation of thissad-ironwill be under-k stood from the above detail description and thatno further explanation is believed necessary. l i.

It is to be understood that the form of this invention herewith shownand describedfis to be taken as a *preferred example of the same, andthat various changes in the shape, size, and arrangement of parts may beresorted to without departing from the spirit of the invention or thescope of the subjoined claims. i

Having thus described the invention, I

1. In a self heating iron of the class described, parallel twin burnersforming a part of the iron body, parallel gas producing tubescommunicating with the burners, a u

el supply tank and a fuel trap attached i to the gas tubesandcommunicating with the tank at a point from below the said tubes.

2. In a self-heating iron of the class described parallel twin burnersforming a part of the iron body, parallel gas producing tubescommunicating with the burners, a coupling attaching the gas producingtubes and means for supplying a liquid vfuel to said coupling ata pointbelow the level of said tubes.

y 3. In a self-heating iron, separately formed l burners located in theiron body, separately formed gas producing tubes carried by the ironbody, air inlets provided in the iron body at points between the burnersand gas producing tubes, means for carrying and supplying a liquid fuelto theA gas tubes and lneans for controlling the flow. of said fuel.

4. In a self heating iron, the combination with the iron body and burnerwithin said body, of a fuel supply tank, gas producing tubes within theburner body, a supply tube connecting the tank and gas producing tubesand having a trap portion between the gas producing tubes and valvescarried by the last named tubes for regulating the fuel supply.

5. In a self-heating iron of the liquid fuel type, a burner formed in aportion of the iron body,` air inlets in the said body com# municatingwith the burner, gas producing tubes communicating with the airinlets, a

lil() im y fuel tank und zt fuel supply tube communicating with the tankand gas producing tubes und having a trap portion below the tubes.

6. ln u eed-iron of the type described, the conibinz'ition with u hollowbody, of a vpuit of pui'ullel burners extending)r longitudinally withinsaid body, u Valve control foi'` euch burner, e fuel vuporizei' tubeconnected to each vulve control und projecting;` from Suid 1 body, ufuel ti'up coupling)` joiningv the Vuporizer tubes, und :it fuel tanltcarried by und coniniunicutingwith the loweiportion of seid coupling.

7. ln u vsud-iion of the type deeciibed, the coinbinution with u hollowbody,'of u puit of parallel yepoi'izei tubes cui'ii'edby seid body7 ubui-nei' foi` each tube, u vulve control between euch tube und itsrespective burner,l

u substantially U-sheped `fuel trap coupling` connected to and dependingvtifoin the' vupoiizer tubes, and fuel tank connected to said couplingbelow the level of said tubes.

8. ln u sadeiion of the type described, a hollow structure includingubottoln uniting, u body casting `removably .connected thereto, pluralparallel burners foi' said structure, Suid burners including :t coredportion of the body casting und u tube projecting at one end into Suidcored portion und :it the other end into u bose foi-ined in the bodycosting, u cup foil the lust mentioned end, und ineens foi* feedinggaseous fuel to seid bui-nel'.

9. ln u, telf-heating sud-i1on of the type described, u plurality ofburners in the body of the eudnon, u plurality of gas produrringelemente connected to Suid burners, :1 tittp fitting connected to suidelement, u fuel tenl; and u Supply tube from euid tank connected to thetrap fittingu below the plane of the gus producing elelnents.

In testimony whereof l utlix my signature.

VCHARLES E. ADAMSON.

